diff --git a/changelog.txt b/changelog.txt
index 1d9f8947ea..6777ca9ce8 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,3 +1,15 @@
+1.9.0-RC1 (2019-03-03)
+------------------------------------------------------------------------
+- Add: Various AI/GS functions for vehicle groups (#7225)
+- Change: Synchronise introduction date and reliability randomness across vehicles with the same base introduction date (#7147)
+- Change: Allow towns to build bridges over rails and one-way roads (#7291)
+- Fix: Detection of coast tiles with trees on them (#7309)
+- Fix: Emergency netsave saved the title game instead of the broken game in question (#7298)
+- Fix: Company livery window showed incorrect groups when opened in multiplayer (#7288)
+- Fix: Unable to select last group in open livery window (#7283)
+- Fix: Goto hangar orders were not invalidated when rebuilding airports (#7100)
+
+
 1.9.0-beta3 (2019-02-24)
 ------------------------------------------------------------------------
 - Feature: Option to adjust font size separately from GUI size (#7003)
@@ -24,10 +36,12 @@
 - Fix #7197: Invalidate depot buttons when necessary (#7212)
 - Doc: [AI] UnshareOrders empties the orders list of the vehicle
 
+
 1.9.0-beta2 (2019-02-09)
 ------------------------------------------------------------------------
 - Fix: Non-Windows builds did not get correct git hash
 
+
 1.9.0-beta1 (2019-02-09)
 ------------------------------------------------------------------------
 Note: OpenTTD was migrated to GitHub for 1.9, so SVN revision and FlySpray numbers have been replaced with Pull Requests and Issue numbers
diff --git a/known-bugs.txt b/known-bugs.txt
index c02897e501..8ad1ade007 100644
--- a/known-bugs.txt
+++ b/known-bugs.txt
@@ -1,6 +1,6 @@
 OpenTTD's known bugs
-Last updated:    2019-02-24
-Release version: 1.9.0-beta3
+Last updated:    2019-03-03
+Release version: 1.9.0-RC1
 ------------------------------------------------------------------------
 
 
diff --git a/os/debian/changelog b/os/debian/changelog
index 858c15371b..2cb748ebe2 100644
--- a/os/debian/changelog
+++ b/os/debian/changelog
@@ -1,3 +1,9 @@
+openttd (1.9.0~RC1-0) unstable; urgency=low
+
+  * New upstream release 1.9.0-RC1
+
+ -- OpenTTD <info@openttd.org>  Sun, 3 Mar 2019 23:00:00 +0000
+
 openttd (1.9.0~beta3-0) unstable; urgency=low
 
   * New upstream release 1.9.0-beta3
diff --git a/os/rpm/openttd.spec b/os/rpm/openttd.spec
index 7f17b7ea9b..c44b2ada8d 100644
--- a/os/rpm/openttd.spec
+++ b/os/rpm/openttd.spec
@@ -17,9 +17,9 @@
 #
 
 Name:           openttd
-Version:        1.9.beta3
+Version:        1.9.RC1
 Release:        0
-%define srcver  1.9.0-beta3
+%define srcver  1.9.0-RC1
 Summary:        An open source reimplementation of Chris Sawyer's Transport Tycoon Deluxe
 License:        GPL-2.0
 Group:          Amusements/Games/Strategy/Other
diff --git a/os/windows/installer/install.nsi b/os/windows/installer/install.nsi
index 604e252c40..8db7ae0a76 100644
--- a/os/windows/installer/install.nsi
+++ b/os/windows/installer/install.nsi
@@ -2,8 +2,8 @@
 !define APPV_MAJOR 1
 !define APPV_MINOR 9
 !define APPV_MAINT 0
-!define APPV_BUILD 2
-!define APPV_EXTRA "-beta3"
+!define APPV_BUILD 3
+!define APPV_EXTRA "-RC1"
 
 !define APPNAME "OpenTTD"   ; Define application name
 !define APPVERSION "${APPV_MAJOR}.${APPV_MINOR}.${APPV_MAINT}${APPV_EXTRA}"  ; Define application version